Daijiro as a Baby Name. Meaning and Origin of Daijiro

What is the meaning of the name Daijiro ?

The baby name Daijiro is a Male name and is pronounced /da.i.dʑi.ɾoː/ (IPA); approx. "DIE-jee-roh".

Daijiro is Japanese in Origin.

Daijiro is a Japanese masculine given name whose meaning depends on the kanji chosen. Frequent spellings include 大二郎 (dai “great” + ni “two/second” + rō “son; youth”), 大治郎 (“great” + “govern/heal” + “son”), and 大志郎 (“great” + “ambition” + “son”); other variants may use 慈 (“mercy”) or 朗 (“bright”). It is pronounced dye-jee-roh, with a long final o.

As a compound ending in -rō/-rou (郎/朗), Daijiro fits a traditional class of boys’ names common from the Edo to early Shōwa eras and still used today. When written with 二, it aligns with the birth-order nuance familiar from Jirō (“second son”). Notable bearers include manga artist Daijirō Morohoshi (諸星大二郎) and Grand Prix motorcycle racer Daijiro Kato (加藤大治郎). Romanized variants appear as Daijirō, Daijiro, and Daijirou; the casual nickname is Dai. Related names include Jirō, Tarō, and Dai.